Liquid soap dispensing device



July 11, 1950 s ETAL 2,514,769

LIQUID SOAP DISPENSING DEVICE I Filed Aug. 21, 1946 INVENTOR.

and Naurz'ce L. P618 I Patented July 11, 1950 "";"UNlTED ST Akron, om

ENT OFFICE",

Maurice L. Pules,

Application August 21, 1946, SerialjNo. 691,995

roams. (01.222449) 1 r invention relatesto. a liquid soap I or like v dispensing device .of the type adapted to be atl itached to a line from a source ofliquidfsupply under pressure; gravitational orotherwise.

U @One object. of the, invention'is to -provide a dis- .penser. of the typev described which is relatively .simple andefiicient in: operation, and yetwhich may. be produced.,.to have aminimurnv of parts. Another object of the invention is to provide ;aliquid. soap or like dispenser. in which fouling I of the .devicevd ue to gumming up of th dispensing'liquid therein is substantially obviated.

9 These and other objects ofthe inventionlwill be manifest from the following brief description and the accompanying drawings.

Of theaccompanying drawings: r r Figure 1. is a plan view of a liquid soap dispenserlembodying the features of the invention.

Figure ,2 .isLaQvertical cross-section taken sub- 1 stantially on theline 2-2 of Figure 1, g t

[Figure 3. is a transverse prose-section; on, an

, enlarged scale, takenonthe 1ine 3 3 of EigureZ.

Figure 4 is a similarly enlarged i cros s sect'lion,

Ytakenon the line 4 4 ofFigure 2. t

[Figure 5 is an enlarged end view from the 'ri ght 0f Figurez. l x Referring to the drawings, the numeral littlesvignates an elongated housing, or hexagonal; bar oriothel'. stock andsuitable material, said housing. having as ringbore or cavity" x di longitudinally from, onelend to a substantial depth, andlhaving a cylindrical passage I2 of freduced cross-section extending from the inner le d i the ser es e tri mmu a t a rec s li3 in the opppsite; end of the housing.

.if'rfi' "iece s 13' i int'ernallyjthifeadedfor attachiim ap iae ensur s fi p 4. w i te age; x mplars are'servoirfor other suitable sourceflof liquid soap supply (not shown) "Slidably received in bore II is a piunger'qs, :including' a cylindrical head l5 "adap'ted'in nor- "mal inoperativeposition ofthe plunger to have --an"operating portion I5b projecting freely out- -wardly of the endof'the housing. A substantial "proportional =length of the plunger, "extending v-through the, 1 spring cavity is of substantially re.- duced diameter and an inner end-portion ofthis -redu ced; portion is slidablyreceived in the cavity end of the passage to act as aguide, andas an ioutletvalve part; iljlyfl; manner to b described 1ater ;-'Ihre aded;into saidinner endfof the reu dy tion. 1 51 m b a s w: I: wh ch I itends coaxially through'the passagezlz and term nate at h iquidr ce vi -e d of t ssa e tlfland a nut I9, threaded on the screw, may be a? valve member 20 including a gasket 20a, of rubber or like sealing material, adapted to engage in sealing relation with an outwardly'presented seatZI provided at the liquid receiving end of the housing by formation of the recess I3. Nut l9'is slidably receivedinthe end of.passage I2, to act' as additional guide means for the plunger in the inoperative position thereof, and thereby toassure proper seating of valve 'member 20. A metal Washeror collar 22,wbetw'een the rubber gasket 2| and head I 8, provides "requisite backingfor stop engagement of the "gasket with th'evalve seat. Thus, substantial length of space is provided between screw I'I and the surface of passage I2, the samedefining a liquid-receiving pocket or chamber I2a which in the normal inoperative condition of the device is fully enclosed except for a liquid dispensing outlet or valveaperture 23, closely adjacent the I springcavity end of said pocket. The parts'are -normally maintained in'the inoperative condition described as by means of the compression spring 24, engaging between the enlarged head 'I5a of the plunger I5 and a rubber or like sealing gasket 25 engaged against the inner end of the spring cavity I I, gasket 25 being provided to seal that end of the passage I2 against leakage ofliquid soap into the spring cavity. The aperture 23 open when plunger I5 is in normal position, and closed by the inner end of plunger part lfijwhen the plunger is in yieldingly depressed position.

.In the operation of the device described, when attached to the pipe I4 from a source of liquid I soap; such as asupply reservoir (not shown) the soap is dispensed from outlet 23 into the cupped palmy of the hand by engaging the projection portion I5b of the plunger I5 with the thumb or the heel of the hand, the plunger thereby being 7 depressedgagainst the action of spring 24, to the chain dotted line position of the plunger and "associated parts illustrated in Figure 2." This plunger depressing action may be momentary and repeated as often as necessary. With each such 'mpm'entary operation of the plunger it is moved so thatthe inner end of reduced plunger part I6 close's"the outlet 23, simultaneously with opening of the valve 20, to permit flow of liquid to the ,po'cket Ila: provided in the passage I2. When "the plunger is released the spring 24 actuates the plunger to close the valve 20 against its seat .2] and open. the outlet 23, whereupon the liquid received in the pocket l2a' is discharged through zinranr en a gedvhqadlal r En aged betwe n h d q5 the outlet 23 into said cupped hand.

Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

What is claimed is:

1. A liquid soap or like dispensing device, comprising a housing having a cavity at one end thereof and a reduced passage communicating the inner end of the cavity with the opposite liquidreceivingrend of the housing, means for connecting said liquid-receiving end of said housing with a source of liquid to be dispensed, a plunger mounted in said housing to have in a normal condition of the device an operating extension outwardly of the housing and havingan inward extension received through said cavity and said passage, liquid-sealing means at the cavity end of said passage, a releasable liquidesealingrvalve at said liquid-receiving end of said passage operable by said plunger, spring means in said cavity for yieldingly urging said plunger to said normal positionin which said valve-is :in :liquideseali-n'g relation :to the liquid-receiving .end :of said passage and .with said operatingextension of--the plungerin its. said outer position, a portion ofthe length of -.said inward extension between'said sealing-means andsaidvalve defining with said massage a chamber adapted to contain a-qu-antity f said liquid, a liduid-dispensingv outlet in said housing communicating'said chamber withthe exteriorfin the normal position Of the plunger,

.=means operable by said plunger in the depressed position thereof to clflsesaid dispensing outlet, said valvedn the depressedposition of therplunger bein yieldingly released and'permitting passage of liquid from said source of supply into said :chambenwh y p n lease ofsaidoperating extension the plunger is yieldingly urged by :said spring to close said valve and said liquid :received said chamber is discharged i h flilghisaid dispensing aperture.

7 A :liquid soap :or like-dispensingdevice-comprising a housing having a cavity t. end :thereof and a reducedpassage communicating the sinner endof qthe cavity with the opposite liquidreceiving end-cftheqhousing, means ifor connect- -iingsaid liquid-receivingendof said housing with "a source of liquid to be dispensed aspmnger mounted in said housing towhave in a normal condition of the device an operating extension :QutWBJdlY of the housingand havingan inward extension received through said;cavity and said passage, liquid-sealing means at the cavity end of said passage, a releasable liquid-sealing valve :atsaid liquid-receiving end of said passage operable ibygsaid plunger, spring means in said cavity it)! yieldingly urgingsaid plungertosaid normal position in which said valve is in liquid-sealin {IGIfilJiQHlJO the liquidreceivingendof said passage and with saidqperating extension :of the plunger in its said'outer position, a portion of the length of aid inward extension between said sealing means and said valve defining with, said passage :a {chamber adapted to contain a predetermined quantity of said liquid, a liquid-dispensing outlet in said housing communicating said chamber with the exterior in the normal position .Of the plunger, a portionoi said inward extension being operable in the depressed ,positionvof the plunger to close :said disp n ng outlet, said valve in the depressed positionof the plunger being released and permitting passageof liquidsfrom said rce of supply intosaid chamber, whereby upon release pf said operating extension -the plunger is yieldingly urged by said spring ,to close'said valve-and said liquid in said chamber is discharged through said dispensing aperture.

3. A liquid soap or like dispensing device, comprising a housing having a cavity at one end thereof and a reduced passage communicating the inner end of the cavity with the opposite liquidreceiving end of the housing, means for connecting said liquid-receiving end of said housing with a source of liquid to be dispensed, a plunger mounted in said housing to, have in a normal condition 101 the'device an operating extension outwardly of'the housing and having an inward extension received through said cavity and said passage, means around said plunger for liquidsealing the cavity end of said passage, a liquidsealing valveonsaid plunger extension for nor- 1 mally sealing said liquid-receivin end of said passage, spring means in said cavity for yieldingly -urging said plunger to said normal position in ,depressed position of the plunger to'closesaid dispensing outlet, said valve in the depressed position of the plunger being adapted to be released andpermittingpassa e ofliquid'from said soureeof supply'into saidschambe'r, whereby upon release of said operating extension 'the plunger is yieldingly urgedbysaid spring to close'said valve .and said liquid in said chamber is discharged through said. dispensing aperture.

4. A liquidsoap or like dispensingdevice, comprising an elongated housing having a cavityat one ,endthereof and a reduced passage communicating ,the inner end of the cavity with the opposite liquid-receiving .end of the housinggmeans for connecting said liquid-receiving .end of said housing with a source of liquid to be-dispensed, a plunger mounted in said housing to have in a normal condition of the device an operatingextension outwardly of the housing =and'having an inwardextensionreceivedthrough said cavity and slidable. in said passage, a liquid-sealing element :around said plunger extension at the cavity end -of-said passage, a liquid-sealing valve on said plunger extension for normally'sealing said liq- -uid-receiving .end of said passage, spring means iii-said cavity for yieldingly urging said plunger tosaid normal position in which said valve is in liquid-sealing relation tothe liquid-receiving end -of said-passage'and with said operating extension of the ,plunger in said outwardly extended position, a-portion of the length of said inward extension between said sealing means and said valve being-of reducedcross-sectionto-define with said passage a chamber adapted to contain a predetermined quantity or-said'liquid, .a liquid-dispensiing outlet 'in said housing communicating said chamber with the exterior in the normal position of the plunger, a portion of said inward extension being engageable in said passage in the depressed position of the plunger to close said dispensing outlet, said valve in the depressed'position of the plunger being adapted to be released and permitting passage of liquid from said source of supply into said chamber, whereby upon release of said operating extension the plunger is yieldingly-urged by Said spring to close said valve ERNEST L. KISH.

MAURICE L. PULES.

REFERENCES CITED The following references are of record in the file of this patent:

Number 6 UNITED STATES PATENTS Name Date Cooke June 21,1904 Ammen July 25, 1905 Backman Aug. 24, 1909 Lyons Dec. 4, 1928 Henderson Nov. 12, 1929 Bobrick Feb. 9,1932 De Witt Jan. 5, 1937 

